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dppmO

Formula:                                   (C₆H₅)₂PCH₂P(O)(C₆H₅)₂ = C₂₅H₂₂OP₂

Molecular Weight:                    400.4

CAS Registry Number: [23176-18-3]

CA Index Name:                      Phosphine oxide, [(diphenylphosphino)methyl]diphenyl-

Other Names:                           Bis(diphenylphosphino)methane mono-oxide

                                                Bis(diphenylphosphino)methane monooxide

                                                Bis(diphenylphosphino)methane monoxide

                                                Bis(diphenylphosphino)methane oxide

                                                (Diphenylphosphinomethyl)diphenylphosphine oxide

Abbreviated Name:                  dppmO

Air- and moisture-stable white powder or white fluffy needles, m. p. 187-191 ^oC

Uses: Ligand for metal-catalyzed reactions.

1. Palladium-catalyzed ethylene/CO copolymerization: J. Mol. Catal. A 2000, 157, 41.

2. Cobalt-catalyzed hydroformylation of epoxides to b-hydroxyaldehydes (which can then be hydrogenated to 1,3-diols without isolation): Chem. Commun. 2000, 1419.